Potassium Carbonate → HCID 46917071, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 2-chloro-N-(3-quinoxalin-2-ylphenyl)acetamide (100 mg, 0.336 mmol), pyrrolidine (34 μL, 0.403 mmol) and K2CO3 (112 mg, 0.806 mmol) in MeCN (5 mL) was stirred at 50° C. for 18 hrs. HPLC analysis still showed starting material and therefore, the reaction mixture was further stirred at 100° C. for 1 h to afford completion. The mixture was cooled to room temperature and ethyl acetate (20 mL) was added, the organic phase was washed with water (20 mL) and then brine (20 mL), and dried over MgSO4, and solvent evaporated. The resulting oily solid was dissolved in DCM (5 mL) and stirred overnight with polystyrene methylisocyanate (“PS-isocyanate” 276 mg, 0.4 mmol, 1.46 mmol/g) to remove any excess pyrrolidine. The polymer was filtered and the organic phase was remove in vacuo, to afford 2-pyrrolidin-1-yl-N-(3-quinoxalin-2-ylphenyl)acetamide (45 mg, 40% yield). LCMS calculated for C20H20N4O (M+H): 333.41. found 333.21. 1H-NMR (DMSO-d6, 400 Mhz) δH: 9.95 (s, 1H), 9.51 (s, 1H), 8.55 (s, 1H), 8.20-8.14 (m, 2H), 8.08-8.02 (m, 1H), 7.95-7.82 (m, 3H), 7.58-7.50 (m, 1H), 3.40 (s, 2H), 2.65-2.55 (m, 4H), 1.85-1.75 (m, 4H).

Provenance & Evidence